Many of the maps we've had showing their estimated range across the United States (and around the globe) haven't been been updated in several years, making regional risk assessments for Zika (and Dengue & CHIKV) difficult.

This week the CDC has released revised maps (with certain caveats attached), on their Zika Vector web page.

These maps DO NOT show

• Exact locations or numbers of mosquitoes living in an area

• Risk or likelihood that these mosquitoes will spread virusesThese maps show

• CDC’s best estimate of the potential range of Aedes aegypti and Aedes albopictus in the United States